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公开(公告)号：US20250156363A1
公开(公告)日：2025-05-15
申请号：US18913275
申请日：2024-10-11
Applicant: Fujitsu Limited
Inventor： Ichiro YOKOKURA , Junichi SUGIYAMA , Yusuke TANABE
IPC: G06F13/42 , G06F3/06 , H04L67/1097
Abstract: A memory drive device includes a memory, and a processor coupled to the memory and configured to when receiving a specific packet according to a connection standard specified in Computer eXpress Link (CXL), store data included as a part of the specific packet in a buffer and determine whether addresses included as the part of the specific packet together with the data are consecutive, when the addresses are consecutive, generate first information in which information of the addresses that are consecutive and information of the data associated with the addresses that are consecutive are aggregated, and notify a memory device of a write request of the data to the memory device, based on the first information and the communication standard when the data stored in the buffer is written to the memory device specified by a communication standard that does not support the CXL.
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2.发明申请公开(公告)号：US20220038204A1
公开(公告)日：2022-02-03
申请号：US17369522
申请日：2021-07-07
Applicant: FUJITSU LIMITED
Inventor： Junichi SUGIYAMA , Toshihiro KONNO
Abstract: A communication device includes a modulator, a first encoder and a second encoder, and generates a modulated signal with quadrature amplitude modulation. The modulator generates a modulated signal by mapping each symbol in a data frame that includes data, a first code, and a second code to a signal point among signal points of the quadrature amplitude modulation. The first encoder encodes the data by using a first coding scheme to generate the first code. The second encoder encodes, by using a second coding scheme, a bit string formed from a specified bit in a plurality of bits allocated to each symbol in the data frame to generate the second code. The modulator performs mapping such that each pair of adjacent signal points are different from each other in terms of a value of the specified bit in the plurality of bits.
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3.发明申请公开(公告)号：US20250141547A1
公开(公告)日：2025-05-01
申请号：US18887071
申请日：2024-09-17
Applicant: Fujitsu Limited
Inventor： Junichi SUGIYAMA , Atsushi KANAI
IPC: H04B10/079
Abstract: Monitoring device is used in optical transmission system that transmits frames between first and second nodes via optical transmission line. First SOP data representing SOP detected in the first node and second SOP data representing SOP detected in the second node are stored in storage. Processor detects first time at which polarization fluctuation component caused by polarization fluctuation arrives at the monitoring device and generates reference data by extracting the first SOP data near the first time. The processor detects second time at which polarization fluctuation component caused by the polarization fluctuation arrives at the second node by searching for a section having SOP similar to the SOP represented by the reference data in the second SOP data. The processor determines a position where the polarization fluctuation occurs based on the first time and the second time.
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公开(公告)号：US20230087839A1
公开(公告)日：2023-03-23
申请号：US17941643
申请日：2022-09-09
Applicant: FUJITSU LIMITED
Inventor： Ichiro YOKOKURA , Junichi SUGIYAMA , Makoto SHIMIZU , Toshihiro SUZUKI , Takeshi NOMA , Hisao NAKASHIMA , Yuji IKEGAMI
IPC: H04B10/079
Abstract: First transmission device includes a first counter that generates counter value incremented in a specified cycle. Second transmission device includes a second counter that generates counter value incremented in the specified cycle. Polarization variation monitoring device acquires a first counter value generated by the first counter and a second counter value extracted by the first transmission device from a received frame transmitted from the second transmission device when the first transmission device detects polarization variation, and a third counter value generated by the second counter and a fourth counter value extracted by the second transmission device from a frame transmitted from the first transmission device when the second detector detects the polarization variation. The polarization variation monitoring device determines an occurrence position of the polarization variation based on the first counter value, the second counter value, the third counter value and the fourth counter value.
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公开(公告)号：US20230082206A1
公开(公告)日：2023-03-16
申请号：US17841989
申请日：2022-06-16
Applicant: FUJITSU LIMITED
Inventor： Ichiro YOKOKURA , Junichi SUGIYAMA , Makoto SHIMIZU , Toshihiro SUZUKI , Takeshi NOMA , Hisao NAKASHIMA
IPC: H04B10/532 , H04B10/61 , H04B10/077
Abstract: First transmission device includes a first counter that generates counter value incremented in a specified cycle. Second transmission device includes a second counter that. generates counter value incremented in the specified cycle. Polarization variation monitoring device acquires a first counter value generated by the first counter and a second counter value extracted by the first transmission device from a received frame transmitted from the second transmission device when the first transmission device detects polarization variation, and a third counter value generated by the second counter and a fourth counter value extracted by the second transmission device from a frame transmitted from the first transmission. device when the second detector detects the polarization variation. The polarization variation monitoring device determines an occurrence position of the polarization variation based on the first counter value, the second counter value, the third counter value and the fourth counter value.
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Patent Agency Ranking
公开(公告)号：US20130259484A1
公开(公告)日：2013-10-03
申请号：US13781959
申请日：2013-03-01
Applicant: FUJITSU LIMITED
Inventor： Hidetaka KAWAHARA , Junichi SUGIYAMA , Wataru ODASHIMA , Shota SHINOHARA , Hiroyuki HOMMA
IPC: H04J14/08
CPC classification number: H04J14/08 , H04J3/1652 , H04J2203/0012 , H04J2203/0025 , H04J2203/0096
Abstract: A data transmission device where a low-speed signal transmission frame is included in time slots of a high-speed signal transmission frame and a number of the time slots to include the low-speed signal transmission frame is variable, wherein the time slots have respective time slot numbers, includes a storage unit storing signal data of the high-speed signal transmission frame corresponding to the number of the time slots based on a time slot number basis, wherein the signal data of the high-speed signal transmission frame are supplied on the time slot number basis; and a selection and output unit selecting and sequentially outputting the signal data on the time slot number basis, wherein the signal data have been stored in accordance with the number of the time slots.
Abstract translation: 在高速信号传输帧的时隙中包括低速信号传输帧的数据传输设备和包括低速信号传输帧的时隙数量是可变的，其中时隙具有相应的 时隙号包括存储单元，其基于时隙数基准存储对应于时隙数量的高速信号传输帧的信号数据，其中提供高速信号传输帧的信号数据 时隙数基础; 以及选择和输出单元，以时隙号为基础选择并依次输出信号数据，其中根据时隙的数量已经存储了信号数据。
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公开(公告)号：US20240427499A1
公开(公告)日：2024-12-26
申请号：US18650171
申请日：2024-04-30
Applicant: Fujitsu Limited
Inventor： Ichiro YOKOKURA , Junichi SUGIYAMA , Yusuke TANABE
IPC: G06F3/06
Abstract: A transmission device transmits signals between a server and an opposing device. The transmission device includes a memory and includes a controller that controls a first queue and a second queue in the server and controls the memory. When detecting issuance of a processing request from the server to the opposing device, the controller queues the processing request in the first queue, obtains the data from the server according to the processing request, and stores the obtained data in the memory. After requesting the transfer of the data and the processing request to the opposing device, before executing the processing request in the opposing device, the controller queues the processing completion of the processing in the second queue and releases the queue of the processing completion.
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公开(公告)号：US20240405919A1
公开(公告)日：2024-12-05
申请号：US18651925
申请日：2024-05-01
Applicant: Fujitsu Limited
Inventor： Junichi SUGIYAMA
Abstract: An error correction device includes an error correction circuit configured to repeatedly perform calculation of error correction on a target frame, based on soft decision information, an upper limit value of a number of times of calculation of the repeatedly performed calculation being set, a first calculation circuit configured to count a number of times of repetition of the calculation of the error correction for each frame, and obtain a sum of numbers of times of repetition of a plurality of past frames, and a second calculation circuit configured to set the upper limit value so as to be a value that corresponds to the sum of the numbers of times of repetition and to be a smaller value as the sum of the numbers of times of repetition is greater.
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公开(公告)号：US20240259189A1
公开(公告)日：2024-08-01
申请号：US18103485
申请日：2023-01-30
Applicant: Fujitsu Limited
Inventor： Muhammad S. SARWAR , Junichi SUGIYAMA
CPC classification number: H04L9/0825 , H04L9/0631
Abstract: According to an aspect of an embodiment, operations may include receiving an Ethernet signal. The operations may further include creating a bitstream from the Ethernet signal which may include a payload of client information and a set of padding bits. The operations may also include encrypting, using an encryption scheme with an encryption key for a set number of bits, a total payload wherein the total payload may include a combination of the payload of client information and at least one bit from the set of padding bits such that the total payload is divisible by the set number of bits. Further, the operations may include generating a frame from the bitstream which may include the total payload.
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公开(公告)号：US20250167894A1
公开(公告)日：2025-05-22
申请号：US18926492
申请日：2024-10-25
Applicant: Fujitsu Limited
Inventor： Junichi SUGIYAMA , Hiroki NAGATA , Yuma KIMURA , Jiro TAKEZAWA
Abstract: Optical transmission device includes: a reception unit, a detector, a mapping unit and a transmission unit. The reception unit receives a first signal transmitted based on a first clock. The detector detects rate information for storing client data in the first signal in a transmission frame based on the first signal. The mapping unit generates the transmission frame by mapping the client data to a payload area of the transmission frame based on the rate information. The transmission unit outputs the transmission frame or a second transmission frame including the transmission frame to a network. The reception unit, the detector, and the transmission unit are implemented by a hardware circuit, and the mapping unit is implemented by software processing using a processor.
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